如何处理多个通知Android

Question

我正在开发一个应用程序，用户可以添加事件，然后在事件即将发生时通知他们。我知道通知应该有唯一的ID，但我将如何在我的应用程序上实现它？有什么建议么？或者你知道的任何教程都会帮助我。谢谢。

这是我到目前为止已经试过：

public class CalendarEvent extends Activity { 

TimePicker time; 
DatePicker date; 
EditText title, description; 

int notifID; 

private int year; 
private int month; 
private int day; 

private int hour; 
private int minute; 

public void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 
    setContentView(R.layout.clendar); 

    //---Button view--- 
    Button btnOpen = (Button) findViewById(R.id.btEventDone); 
    btnOpen.setOnClickListener(new View.OnClickListener() { 

     public void onClick(View v) {     
      time = (TimePicker) findViewById(R.id.tpEventTime); 
      date = (DatePicker) findViewById(R.id.dpEventDate);  
      title = (EditText) findViewById (R.id.etEventTitle); 
      description = (EditText) findViewById (R.id.etEventDescription); 

      //---use the AlarmManager to trigger an alarm--- 
      AlarmManager alarmManager = (AlarmManager) getSystemService(ALARM_SERVICE);     

      //---get current date and time--- 
      Calendar calendar = Calendar.getInstance();  

      //---sets the time for the alarm to trigger--- 
      calendar.set(Calendar.YEAR, date.getYear()); 
      calendar.set(Calendar.MONTH, date.getMonth()); 
      calendar.set(Calendar.DAY_OF_MONTH, date.getDayOfMonth());     
      calendar.set(Calendar.HOUR_OF_DAY, time.getCurrentHour()); 
      calendar.set(Calendar.MINUTE, time.getCurrentMinute()); 
      calendar.set(Calendar.SECOND, 0); 

      //---PendingIntent to launch activity when the alarm triggers---      
      Intent i = new Intent(CalendarEvent.this, DisplayNotification.class); 

      year = calendar.get(Calendar.YEAR); 
      month = calendar.get(Calendar.MONTH); 
      day = calendar.get(Calendar.DAY_OF_MONTH); 

      hour = calendar.get(Calendar.HOUR); 
      minute = calendar.get(Calendar.MINUTE); 

      String strTitle = title.getText().toString(); 
      String strDescription = description.getText().toString(); 
      String strDate = String.valueOf(month) + "-" + String.valueOf(day) + "-" + String.valueOf(year); 


      StringBuilder sb = new StringBuilder(); 
      if(hour>=12){      
       sb.append(hour-12).append(":").append(minute).append(" PM"); 
      }else{ 
       sb.append(hour).append(":").append(minute).append(" AM"); 
      } 
      String strTime = sb.toString(); 

      //---assign an ID of 1--- 
      i.putExtra("NotifID", notifID); 
      i.putExtra("Title", strTitle); 
      i.putExtra("Description", strDescription); 
      i.putExtra("Date", strDate ); 
      i.putExtra("Time", strTime); 

      PendingIntent displayIntent = PendingIntent.getActivity(
       getBaseContext(), 0, i, 0);    

      //---sets the alarm to trigger--- 
      alarmManager.set(AlarmManager.RTC_WAKEUP, 
       calendar.getTimeInMillis(), displayIntent); 
      finish(); 
     } 
    }); 

} 

Answer 1

通知需要一个唯一的ID。您正在为意图创建唯一ID。要从AlarmManager发布通知，请在服务中使用BroadcastReceiver。当服务收到从AlarmManager发送的意图时，服务可以创建并发布通知。